Add Computer Usage Summary

[liuyewang]

Summary

• Add Computer Usage Summary to the Development & Workflow section.
• The plugin provides privacy-first local ActivityWatch summaries for app time, AFK state, sanitized timelines, and review-ready reports.
• Source repository: https://github.com/liuyewang/computer-usage-summary-skill

Validation

• Plugin manifest validation passed locally.
• Unit tests: 17 passed.
• HOL scanner GitHub Action passed on the source repository: https://github.com/liuyewang/computer-usage-summary-skill/actions/runs/30270124189

Requirements

• Source repository includes .codex-plugin/plugin.json, SECURITY.md, LICENSE, README.md, and the HOL scanner workflow.

[gemini-code-assist]

Caution

The consumer version of Gemini Code Assist on GitHub has been sunset. All code review activity has officially ceased.